java.util.InputMismatchException in Java

In this Program i am going to read reverse of 1 to n numbers in Java

Error Message:

Exception in thread "main" java.util.InputMismatchException

       at java.util.Scanner.throwFor(Scanner.java:864)

       at java.util.Scanner.next(Scanner.java:1485)

       at java.util.Scanner.nextInt(Scanner.java:2117)

       at java.util.Scanner.nextInt(Scanner.java:2076)

       at com.lib.RevrseOf1toNnum.main(RevrseOf1toNnum.java:11)

Error Description:

In this Program we have to give integer numbers,but i gave fractional number as input,so i got an error.  

package com.lib;

import java.util.Scanner;

public class RevrseOf1toNnum {

       public static void main(String[] args)

       {

              Scanner num = new Scanner(System.in);

              System.out.println("Enter a value:");

              int i = num.nextInt();

              for(int j=i;j>=1;j--)

              {

                     System.out.println(j+"\t");

              }

             

       }

}

Error Solution:

package com.lib;

import java.util.Scanner;

public class RevrseOf1toNnum {

       public static void main(String[] args)

       {

              Scanner num = new Scanner(System.in);

              System.out.println("Enter a value:");

              int i = num.nextInt();

              for(int j=i;j>=1;j--)

              {

                     System.out.println(j+"\t");

              }

             

       }

}

Output:

Enter a value:

5

5     

4     

3     

2     

1